Gardner c



(No Model.)

G. C. HAWKINS.

FUEL EGONOMIZER.

No. 498,211. Patented May 23,1893. e

A /==1\ Ik Ik Ik ./Dk/ 9% 1 L L J L L 1 L l 1 1/ v-f kf;- O i 7 vmwiw/- i i u UNITED .STATES IPATENT OFFICE.

.GARDNER C. HAWKINS, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO HENRY W. PEABODY & OO., OF SAME PLACE.

FU EL-ECONOiMlZER.

SPECFICATION forming part of Letters Patent No. 498,211, dated May 23, 1893.

Application tiled October 11, 1887. Serial No. 251,992. (No model.)

To f/,ZZ whom t may concern:

Be it known that I, GARDNER C. HAwxiNs, of Boston,in the countyof Suffolk and State of Massachusetts, have invented an Improvement in Fuel-Economizers, of which the following description, in connection with the accompanying drawings, is a specification, like 'letters and numerals on the drawings representing like parts.

This invention is an improvement upon United States Patent No. 334,533, dated J anuary 19, 1886, and granted toLowcockand Sykes, and has for its object to provide suitable means of communication between the several bottom boxes and also between the several top boxes, so that the outside branch pipe located outside the masonry and connecting the several boxes by the ends of the boxes which extend through the masonry may be omitted.

ln accordance with this invention the several boxes are placed side by side and provided near one end with lateral openings which register so as to form a continuous transverse passage from end to end of the series. One end of the said passage is closed and a pipe is iitted to the opposite end which serves as an outlet pipe. The several bottom boxes, each having an inclined bottom are placed side by side and provided near each end with lateral openingsk which register so as to form two independent continuous transverse passages from end to end of the series and at opposite ends of the boxes. One of the passages as at the deepest part of the series of boxes or near the point Where the declining bottom terminates, serves as ablow- 0E passage to remove the sedimentary material, and the other passage at the opposite end of the said boxes serves as an inlet passage each of said passages being closed at one end and provided at the other end with suitable pipes.

Figure 1 shows in side elevation a fuel economizer embodying this invention, the vertical pipes being broken to save space upon the drawings and the masonry being taken in section; Fig. 2.a vertical section of the fuel economizer shown in Fig. 1 taken on the dotted line -cc, and Fig. 3 a modified form of fastening for the boxes to be referred to.

The bottom boxes a, herein shown as seven in number each having an inclined bottom as Y represented in Fig. 1; the top boxes b corresponding in number with the number of bottom boxes a, and the vertical`pipes c Iitted into openings formed in the upper side of the bottom boxes and the under side of the top boxes, eight such pipes being herein shown in connection with each bottom and top box, or fifty-six in all, are similar to corresponding parts in the patent referred to. In the present instance the top boxes b are placed side by side and each is provided with lateral openings as b which register or communicate with each other to thereby form a continuous transverse passage 2 from end to end ot' the series of boxes as shown in Fig. 2. The passage 2 thus formed by the openings b is closed l at one end as by a capb2 and at the opposite end a curved or other suitably shaped pipe b3 is fitted which forms a continuation of the said passage 2, said pipe serving as an outlet pipe. A long bolt b4 passes through the material of the pipe b3, thence through the passage 2 to the cap b2, said bolt having suitable nuts at each end which serve as fastenings to clamp or hold all the boxes rigidly in position although it is obvious that any other suitable fastening may be employed in lieu of those shown.

The bottom boxes a are placed side by side and are provided near one end, namely, at or near the point where the bottom ceases to further decline, with lateral openings a which register or communicate one with another to thereby form a continuous transverse passage 3 from end to end of the series of boxes a, as shown in Fig. 2, said passage 3 serving as a blow-oft passage and being located at the deepest portion of the boxes, is employed to remove the sedimentary material from the apparatus. One end of the lpassage 3 is closed by a cap a2, and the other end is provided with a suitable pipe a3. A bolt a4 passes through the material of the pipe as, `thence through the passage 3 and through the cap 0.2, said bolt having at each end nuts which upon being tightened clamp the several boxes rigidly together. To aid in forming tight joint connections lateral flanges a5 are pro- ICO vided surrounding all the openings a which flanges abut against each other. The bottom boxes, at their opposite ends, are also provided with lateral openings similar to the openings a just described, to form a continuous transverse passage at the opposite end, which passage extends from end to end of the series and is provided at one end with a cap cl to close it and at the opposite end with a pipe d', said passage serving as an inlet passage. A bolt similar to the bolt 0,4 passes through the material of the pipe d', thence through the passage and through the cap d, which bolt is employed to aid in binding the boxes rigidly together.

In lieu of the bolts herein shown as fastenings, the ends of both top and bottom boxes, or either of them, may be provided with ears as shown in Fig. 3, and the said boxes be independently attached one to the other.

By providing the inlet and outlet and blowoff passages, as shown and described within the masonry, any one of the sections may be removed when desired without cutting away the masonry which has been a serious objection to the form shown in the patent referred to, as in the said patent each box terminates by a short pipe passing through the masonry, said short pipes being connected by an outside branch or connecting pipe, and to remove any section the masonry must be cut away to permit the said short pipe which is formed integral with the box to be removed.

It is obvious that the essential features of this invention are equally as well applicable to any form of bottom box whether the lower side is made inclined or level.

I claiml. In a fuel economizer, the bottom boxes, having inclined under sides and vertical pipes, combined with a longitudinally extended top-box having the transverse outlet passage 2, at one end substantially as described.

2. In a fuel economizer, the top-box, and the vertical pipes, combined with the irregular shaped bottom-box having at or near each end the herein described transverse inlet and blow-off passages, substantially as described.

3. In a fuel economizer, the contiguous series of topboxes having a transverse outlet passage 2, at one end, and a fastener for the boxes, and the vertical pipes, combined with the contiguous attached bottom boxes having the described inlet and blow-off passages, and the fastening for said boxes, substantially as and for the purposes set forth.

4. In a fuel economizer the top boxes and the vertical pipes, combined with the bottom boxes having one or more transverse passages, and the longitudinally inclined under side substantially as and for the purposes specified.

In testimony whereof I have signed my name to this specification in the presence ot' two subscribing witnesses.

GARDNER C. HAWKINS.

Witnesses:

BERNICE J. Novus, ALBERT F. FEssENDEN. 

